Governor for internal-combustion motors



E. KNAUSS.

GOVERNOR FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED NOV- 2, 1920.

Patented Nov. 28, 1922.

ILE

Patented Nov. 28, 1922.

EDWARD KNAUSS, 0F MOUNT VERNON, NEW YORK, SSIGNOR TO K. P. PRODUCTS COMPANY, INC., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GOVERNOR FOR INTERNAL-COMBUSTION MOTORS.

application med november 2, 1920. serial No. 421,358.

To all, wie om t may concernV Be it known that I, EDWARD KNAUss, a citizen of the United States, residing at Mount Vernon, count-y of Westchester, and State of New York. have invented new and useful Improvements in Governors for Internal-Combustion Motors, of which the fol lowing is aI specification.

My invention relates to governors f or 1nternal combustion motors and has lfor lts object to provide a governor for this purpose which will be more eflicient and accurate 1n its action, more easily und accurately regulated, more durable and less costly to construct than those heretofore in use.

With these and other objects in view, which will be more particularly set forth in the specification, my invention consists in the novel details o-onstruction and combinations of parts hereinafter disclosed and particularly pointed out in the claims.

Referring to the acom anying drawings:

F irure l is a sectional) view on the line A- of Figure 3.

Figure 2 is an elevation partly in section and partly broken away.

Figure 3 is a section on the line E-F of Figure 1. p l

Figure 4 is a plan view looking upward.

Figure 5 is an enlarged detail partly in section of thev piston. cylinder and needle valve.

Like numerals designate like parts in all the views.

My governor is provided with a casing or body 1, which is formed of the shells 2 and 3, which are secured together by forcing the lower end of the shell 2 over the contracted portion 4 of the shell 3 until it rests on the shoulder 5. The shell 2 is provided with a flange 2 which is adapted to be secured to the maiiifold of an internal combustion engine and the shell 3 with a flange 3 adapted to be secured to the flange of a carbureter by bolts, not shown. which pass through the flange on the manifold both flanges on my governor and the flange on the carbureter. The upper portion of the shell 3 1s reduced in diameter and machined to formed a neck 6. Formed integral with the neck 6 is a spider 7 which supports a cylinder 8 uponl which is mounted a disc 9.

The cylinder 8 is provided with a port 10 which discharges above the disc 9 and may be regulated by a needle valve 11. A cap 12 is adapted to cover the chamber 13 in which the needle valve is mounted, and may be secured 1n positicln by a seal 14, so that the regulation of the needle valve 11, with reference to port 10, can not be disturbed 'without breaking the seal 14. Secured in thel base of the casing 3 is a spider 15 provided with an upstandlng cylinder 16 which may or may not be provided with an air vent 17. The spider 15 secures the bushing 15 in the casing 3. Mounted on a guide stem 18, which extends into the cylinder 16, is a head 19, having a ltubular piston 20, the u per end of which is formed to llt closely and) accurately in the cylinder 8 and is adapted to reciprocate therem and act as a dash pot. It

is apparent that the stem 18 and the cylinder 16 will also act as a dash potit' the vent 17 is omitted or is not too large to prevent this action.

The piston 20 is provided with a reduced section 21, which when the parts are at rest, as shown in Figure 1, begins below the port 10 .and extends below the lower end of the cylinder 8. Below the section 21 is the lower piston section 22, which is slightly tapered as shown in Figure 5.

The lower piston, section 22, lits somewhat loosely in the cylinder 8 but the area of the clearance between the lower pistony section 22 and the wall of the cylinder 8 is less than the area of the port 10.

Externally mounted on the neck 6 is a concentric valve 23. ln the upper end of the valve 23 are cut two notches 24, which not only serve to gradually close the ort between the chambers 26 and 27 w en the valve 23 has been lifted until its highest point is level with the disc 9 but leave uncovered triangular ports of small area when the piston 20 is in contact with the head of. the cylinder 8. These triangular ports, which then remain uncovered by the disc 9, are of such area that they will supply sufficient mixture to prevent the engine from missing or reduce the charges of mixture beyond the point where they will not ignite and yet,will not supply sullicient mixture to cause further acceleration of the engine speed.

The o eration of my invention is as follows: hen the engine is running slowly the travel of mixture from the carbureter through my governor to the engine will be comparatively slow and the impact of the e mixture, and its velocity is suiieiently inmixture on the head 19 will not be suiiicient to lift the head and the parts to which it 1s are such however that when the flow of the creased by any increase 1n the engine speed,

the head 19 will be lifted carrying with it the piston 2O and the valve 23. The valve 23, as it is raised, restricts the Aport leadm from `the chamber 26 to the chamber 27 an thereby causes the preure in the chamber 27 to fall below the pressure in the chamber 26.

If the flow of mixture is sufiiciently rapid,

the head 19 will be elevated until the reduced'portion 21 of the piston is opposite the port 10 and the upper end of the lower 'piston section 22 is within the cylinder. .The negative head in the chamber 2 w1ll then be communicated to the cylinder 8 where it will be reduced b the leakage past the lower section 22 of tlie piston, but will tend to furtherelevate the piston and valve 23. As the valve 23 is raisedv and the port between the chambers 26, and 27`is closed, this difference in ressure in the chambers l 26 and 27 is f rapldly. increased, if the engine speed is maintained until itis suiiicie'nt to raise the piston 20 until its head contacts with the head of the cylinder 8 thereby reducing the port between the chambers 26 and 27.7.to the unclosed portions of the angular ports in the upper end Yof the valve 23. The angular ports easily and radually cut down the iow of mixtilre to suc an amount as will prevent 'further acceleration of the engine speed, while at the same time supplying suflicient quantities of mixture to keep the engine running smoothly and prevent missing. It will also be aparent that as the tapered section 22 of the piston 20 passes into the c linder the leakage between the piston and t e .cylinder walls 1s ,decreased and the net head acting to y force it upward is increased accordingly.

By regulating the needle valve 11 so as to partially close, more or less, the port 10, the

ratio of the clearance area about the lower necessary to lift the piston and close the valve 23. As the moving parts move with a minimum of friction, 'my governor quickly and accurately responds to the varying conditions of the flow of mixture through it and to the varying pressures in the chambers 26 l and 27 caused lby the closing of the valve 23,

and the action of these variations of presl sure maybe regulated by the needle valve 11,

thereby easily enabling the o erator to accuratel regulate the speed o the engine to whicli it is attached within wide ranges. The primary means which initiates the closying movement of the valve 23 is the head 19,

and the engine speed at which vthe closing movement of the valve 23 is initiated may be regulated by substituting heads 19 of varying size or weight or bushings 15a of varying interior diameters. The secondary means which is adapted to complete but cannot initiatethe closing movement of the valve 23 is thepieton 22, the action ofwhich is reguA lated by the needle valve 11.

Claims., l

1. 1A governor for internal combustion motors comprising in combination a port through which explosive mixture may pass from the source of supply to the engine, a valve adapted to reduce the area of said port, primary automatic means adapted to partiallyy close said valve and secondary automatic means actuated by the difference in pressure on oppositeside of said valve adapted to continue but not to initiate the closin movement of said valve.

2. governor for internal combustion motors comprising in combination a port through which explosive mixture may pass from the source of supply to the engine, a valve adapted to reduce the area of said port," primary automatic means adapted to partially close said valve, secondary automatic means actuated by the difference in pressure on opposite 4sldes of said valve adapted-to continue but not to initiate Athe lclosing movement of said valve and manual means for regulating the action of said difference in pressure on said secondary means.

3. A governor for internal combustion engines comprising in combination a port through which explosive-mixture may pass from the carbureter to the engine, a valve adapted to reduce the area ofsaid port, primary means, actuated by the impact thereon of the explosive mixture adapted to partially close said valve and secondary means actuated by the difference in pressure on opposite sides of said valve adapted to continue but not to initiate the closing movement of said valve.

4. A governor for internal combustion engines comprising in combination a port through which explosive mixture may pass from the carbureter to the engine, a valve adapted to reduce the area of said port, pri'- maryx means, actuated by the impact thereon of t e explosive mixture adapted to partially close said valve, secondary means actuated by the difference in pressure on opposite sides of said valve adapted to continue but not to initiate the closing movement of said valve and manual means for regulating the activity of said secondary means.

5. A governor for internal combustion motors comprising in combination a port through which explosive mixture passes from thel carbureter to the engine, a valve adapted to reduce the area of said port, primary means actuated by impact of the explosive mixture adapted to partially close said valve and secondary means actuated by the diierence i1; pressure on opposite sides of said valve adapted to continue the closing lmovement of said valve.

. 6. A governor for internal combustion motors comprising in combination a port through Which explosive mixture passes from the carbureter to the engine, a valve adapted to reduce the area ot' said port, primary means actuated by impact of the explosive mixture adapted to partially close Vsaid valve,`secondary means actuated by the difference in pressure on opposite sides of said valve, adapted to continue the closing movementvof said valve and manual means for regulating theaction of said difference in pressure on said secondary means.

7. A governor for internal .combustion 4motors comprising in combination, a port through which explosive mixture may pass from the corbureter to the engine, a valve adapted to partially, but not Wholly, close said port, a head attached to said valve and mounted in the path of the mixture passing through said governor and adapted to be actuated by the impact of the mixture and partially close said valve, a cylinder, a piston mounted in said cylinder and connected to said valve and said head, chambers on either side of said valve and a. port in the wall of said cylinder in communication with said cylinder and the chamber between the valve and the engine.

8. A governor' for internal combustion motors comprising in combination, a port through which explosive mixture may pass from the carbureter to the engine, a valve adapted to partially, but not wholly, close Said port, a head attached to said Valve and mounted in the path of the ixture passing through said governor' and adapted to be actuated by the impact of the mixture and partially close said valve, a cylinder` a piston mounted in said cylinder and connected to said valve and said head, chambers on either side of said valve` a port in the Wall of said cylinder in communication with said cylinder and the chamber between the valve and the engine. and manual means Jfor partially closing the port in the cylinder wall.

Signed at New York, thisQth day of Oc.-

tober, 1920.l y

EDVARD KLTAUSS. 

